JC Bose and the German scientific community: scientific and political context, Current Science 96, 419-422, 2009.

Historical notes in "Current Science", Current Science 97, 132, 2009.

Max Planck and the genesis of the energy quanta in historical context, Current Science 95, 788-792, 2008.

Writing the history of modern science and technology in India, Current Science 95, 829, 2008.

Indo-American relation with reference to Bernhard Peters, IJHS 437-454, 2008. 80 years ago – The discovery of the Raman effect at the Indian Association for the cultivation of sciences, Kolkata, Indian Journal of Physics 82, 969-985, 2008.

(co-author Falk Riess), The Nobel Laureate Sir Chandrasekhara Venkataraman FRS and his contacts with the British scientific community in a social and political context, Notes and Records of Royal Society London 58, 47-64, 2004.

Vorträge & Workshops

Seventy Years Ago - The Instruments which Lead to the Discovery of the Raman Effect, The International Society for the History and Philosophy of Science - Symposium of Scientific Instruments Commission, Soroe/Denmark July 20-25, 1998.

Raman spectroscopy and its instrumentation, (Poster), The International Society for the History and Philosophy of Science, Oxford/England, September 4-8, 2000.

Sir CV Raman and the Nobel Prize for Physics in 1930. Colloquium, History of Science Department, University of Aarhus/Denmark, September 23, 2000.

The Raman effect, '... one of the most convincing proofs of the quantum nature of light', 100 years of quantum mechanics, International Symposium: Development of quantum mechanics between 1925 and 1935, Berlin/Germany, December 14-16, 2000.

The Nobel Laureate C.V. Raman and his musical instruments, Symposium Scientific Instrument Commission, International Society for the History and Philosophy of Science, Stockholm/Sweden, October 15-19, 2001.

The Nobel Prize controversy between CV Raman and the Russian LI Mandelstam and GS Landsburg. Colloquium at the Kopernikus University, Torun/Poland, November 30, 2001.

JC Bose FRS and some of his scientific instruments, Symposium Scientific Instrument Commission, International Society for the History and Philosophy of Science, Athens/Greece, September 9-14, 2002.

"Das Weltbild Indien" - Indian cosmology, Institute of the History of Natural Sciences, Mathematics and Technology, University of Hamburg, Hamburg/Germany, Jan. 14, 2003.

Participated: The International Conference on “From the itinerant lecturers of the 18th century to popularizing physics in the 21st century - exploring the relationship between learning and entertainment”, Pongana, Como/Italy, June 1-6, 2003.

"India's" Nobel nominators and nominee in the first half of the twentieth century, Colloquium at the University of Oldenburg, Research Group: Physics Education, History/Philosophy of Science, Oldenburg/Germany, November 24, 2004.

How to win a Nobel Prize - The example of CV Raman, Colloquium at the University of Hamburg, Institute for the History of Science, Technology and Mathematics, Hamburg/Germany, December 6, 2004.

Albert Einstein's light quanta and the reception in India, 11th Conference of the German Physical Society "Einstein Jahr 2005", History of Physics, Berlin/Germany, March 07-09 March 2005.

Writing the History of 20th Century Physics in India: Problems and Peculiarities - The C.V. Raman Example, 88th Conference of the German Society for the History of Medizine, Mathematics and Natural Sciences and Technology, University of Oldenburg, Oldenburg/Germany, 23rd-25th Sept. 2005.

Reconstruction of Historical Instruments and their Role in Science Education, History and Popularisation of Science, Zakir Husain Education Centre – Social Study of Sciences, Jawaharal Nehru University, Delhi/India, 29th, March 2006.

CV Raman and his contact with European Men of Science in political context, European Society for the History of Science, Cracow, September, 6-9th, 2006. The Global and the Local - The History of Science and the Cultural Integration of Europe Cracow/Poland. Sept. 6-9, 2006.

When the research style clashes – Max Born and CV Raman: Lattice dynamics controversy, European Society for the History of Science, 3rd Conference in Vienna, 10.th – 12th September, 2008

Emergence of experimental physics in India and a short local history of scientific instruments in the first half of the 20th century, Gesellschaft Deutscher Chemiker – Deutsche Physikalische Gesellschaft - Geschichte der Materialforschung, March 24th-27th, 2009, Göttingen.

Participation in international symposium “Learning by doing – Experiments and Instruments in the History of Science Teaching”, April 4th-5th, 2009, Regensburg.